Mercury Tube Small 79×320 Medium 158×640 Large 253×1024 Download Tiff Original 593×2400 | (158.7 KB) Description This illustration shows the proportions of volume in which hydrogen and oxygen combine by introducing the two gases into a tube, filled with mercury and inverted within a cylinder of mercury. Keywords Hydrogen, Mercury, oxygen Galleries Chemistry Concepts and Lab Experiments Source: Alexander Smith, Intermediate Text Book of Chemistry (New York: The Century Co, 1920) 60